Thousands of workers went on strike on Friday at a Taiwanese-owned shoe factory in southern Vietnam, demanding better pay and benefits, state-run newspapers reported.

Some hurled shrimp paste sauce and splashed pig’s blood on workers who were not participating in the strike at the Pou Chen Group factory in Dong Nai province, the website of the newspaper Nguoi Lao Dong reported (www.nld.com.vn).

Another newspaper, Tuoi Tre, said the manager of the factory agreed to increase pay by 5 percent but the workers did not immediately return to work, it reported on its website (www.tuoitre.com.vn). It said more than 10,000 workers had walked out.